ASIS International (ASIS) Professional Certified Investigator Practice Exam

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Who was the first person to obtain a conviction using fingerprints?

Clive Popay
Robert Peel
Alec Jeffreys
Juan Vucetich

The correct answer is: Juan Vucetich

The first person to obtain a conviction using fingerprints was Juan Vucetich, an Argentine police official and pioneer in fingerprint identification. In 1892, Vucetich used fingerprints to solve a murder case in Buenos Aires. He compared fingerprints taken from the crime scene with those of the suspect and, based on this evidence, secured a conviction. This marked a significant milestone in forensic science, showcasing the reliability of fingerprint evidence in the legal system. Vucetich's work laid the foundation for the use of fingerprints in criminal investigations worldwide, transforming the way evidence is gathered and analyzed in the pursuit of justice. His techniques and methodologies continue to influence modern forensic practices, emphasizing the critical role of fingerprint analysis in legal contexts.